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Horse profile

Alnwick Castle (GB)

4yo filly (at last run, Feb 2023) · Last trainer Harry Eustace · Last owner Harold Nass
by Sir Percy (GB) out of Iron Butterfly (GB) (Shirocco)
6 runs · 6 courses · from May 2021
As at 4 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 27 Feb 2023 — 1,345 days ago. Our archive can't say whether the horse is still in training.
Last run Feb 2023 · 8th of 8 Last raced off OR 48
KTB Profile

Alnwick Castle is a filly by Sir Percy out of an Iron Butterfly mare who was yet to win from six starts. She raced three times on turf and three times on the all-weather without placing, contesting races over 6f to 7f and 1m2f to 1m4f on good to firm, good, heavy and standard going. Her highest official rating was 54 and she last ran off 48. Aged 4 at her last run in Feb 2023, she finished 8 of 8 in a Class 6 race at Wolverhampton.

Based on 6 archived runs · updated 4 Nov 2026

KTB Speed and Rating

KTB Speed

Best recent Speed 90 the best of the last 3 graded (A or B) runs · Southwell (AW), 9 Dec 2022

How fast the horse ran, as points against the day-corrected standard time for its course and distance: 100 is the median GB Class 4 handicap winner on that code; one point is 0.1% of the standard time. A, B or C is how much the day's card could tell us, not how good the run was. What this means →

Flat 5 figures · best 90B · median 49
GoingRunsBestMedianSince 4 Nov 2025
Standard (AW)390B49—
Good to Firm1———
Good1———
DistanceRunsBestMedianSince 4 Nov 2025
1m2f – 1m4f390B49—
6f – 7f250A45.5—

Of 6 runs looked at, 1 has no figure: not enough races on the card to set the day (under 4) (1).

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 5 figures from 6 runs · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 53A the best of the last 3 rated runs · Southwell (AW), 9 Dec 2022 Official rating 48 at the last run, 27 Feb 2023

What the horse achieved in each race, in pounds on the official-rating scale, from the weight carried, the lengths beaten and the race's own level solved across the archive — never the market, never the official rating as a starting point. The headline is the best of the horse's last three rated runs on that code — its best recent day. The KTB Rating on a racecard is a different reading of the same figures: the level the horse has been running to, an average of up to its last six runs with the latest counting most, so the two can differ. A, B or C on a run is how much known form was in that race. What this means →

Flat 6 figures · best 61A · median 50.5
GoingRunsBestMedianSince 4 Nov 2025
Standard (AW)353A41—
Good to Firm1———
Heavy1———
Good1———
DistanceRunsBestMedianSince 4 Nov 2025
1m2f – 1m4f353A41—
6f – 7f361A54—

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 6 figures from 6 runs · as at 4 Oct 2026 · a record, not a forecast

Both figures are KTB's own, computed from the archive; no vendor rating enters either. Every run's figure is on its form line below with its grade. Grades measure how much the archive could see, never the merit of the run.

Run style is derived from in-running commentary, which our data provider does not supply for this horse's races.

Pedigree intelligence

Sire
Sir Percy (GB)

Progeny in our archive have won 11.2% of 7,153 runs since May 2011 (473 horses).

GoingRunsWinsSRvs sireThis horse
Firm52815.4%+4.2—
Good to Firm1,17614912.7%+1.50 from 1
Good1,73619111%−0.20 from 1
Good to Soft908859.4%−1.8—
Soft8598610%−1.2—
Heavy2052713.2%+20 from 1
Standard (AW)2,21725211.4%+0.20 from 3
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f90910%−1.2—
6f – 7f967848.7%−2.50 from 3
1m – 1m1f1,15211610.1%−1.1—
1m2f – 1m4f2,51929911.9%+0.70 from 3
1m5f – 2m1,59219011.9%+0.7—
2m1f – 2m4f5156212%+0.8—
2m5f – 3m2482811.3%+0.1—
Over 3m701014.3%+3.1—

Flat and jumps together (all codes) · since May 2011 · as at 4 Nov 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Iron Butterfly (GB) (Shirocco)

1 sibling in the archive, 0 winners.

ProduceRunsWinsWin tripsBest grade
Fort Nelson (GB)120——

Record by conditions

GoingRunsWinsSR£1
Standard (AW) 3 0 0% −3.00
Good to Firm 1 0 0% −1.00
Heavy 1 0 0% −1.00
Good 1 0 0% −1.00

ClassRunsWinsSR£1
Class 6 3 0 0% −3.00
Class 3 1 0 0% −1.00
Class 4 1 0 0% −1.00
Class 5 1 0 0% −1.00

CourseRunsWinsSR£1
Wolverhampton (AW) 1 0 0% −1.00
Kempton (AW) 1 0 0% −1.00
Southwell (AW) 1 0 0% −1.00
Newmarket 1 0 0% −1.00
Sandown 1 0 0% −1.00
Yarmouth 1 0 0% −1.00

DistanceRunsWinsSR£1
1m2f – 1m4f 3 0 0% −3.00
6f – 7f 3 0 0% −3.00

JockeyRunsWinsSR£1
Hayley Turner 3 0 0% −3.00
George Wood 2 0 0% −2.00
Daniel Muscutt 1 0 0% −1.00

HeadgearRunsWinsSR£1
None 5 0 0% −5.00
Hood 1 0 0% −1.00

SeasonRunsWinsSR£1
2023 2 0 0% −2.00
2022 1 0 0% −1.00
2021 3 0 0% −3.00

Splits include every sample, however small — muted rows are under 3 runs. A one-from-one record is a fact, not a trend: read the Runs column before the strike rate.

Form

DateCourseRace PosBtn Wgt ORSpdKTB Jockey SP
2023 · 2 runs
27 Feb 23+26d Wolverhampton (AW) BetUK's Acca Club 5 Free Bet Classified Stakes Class 6 · 1m4f · Standard · 8 ran 8/8 39 9-2 4835C36C Hayley Turner 14/1
01 Feb 23+54d Kempton (AW) Bet At racingtv.com Handicap Class 6 · 1m4f · Standard To Slow · 13 ran 12/13 4 9-6 5149C41C Daniel Muscutt 8/1
2022 · 1 run
09 Dec 22+440d Southwell (AW) Huge Daily Boosts Only At BetUK Handicap Class 6 · 1m4f · Standard · 13 ran 10/13 1½ 9-4 5490B53A Hayley Turner 13/2
2021 · 3 runs
25 Sep 21+59d Newmarket Blandford Bloodstock Maiden Fillies' Stakes (GBB Race) (Div 1) Class 3 · 7f · Good To Firm · 8 ran 7/8 1½ 9-0 —50A48A George Wood 125/1
28 Jul 21+61d Sandown Join Casumo Today EBF Novice Stakes (GBB Race) Class 4 · 7f · Heavy · 13 ran 13/13 1¾ 9-0 ——54C George Wood 200/1
28 May 21 Yarmouth British Stallion Studs EBF Novice Stakes (GBB Race) Class 5 · 7f · Good · 12 ran 8/12 5 9-0 —41A61A Hayley Turner 125/1

Quick answers

How many races has Alnwick Castle won?
Alnwick Castle (GB) has yet to win, from 6 archived starts between 2021 and 2023.
Who trained Alnwick Castle?
Alnwick Castle (GB) was trained by Harry Eustace on the most recent run on record, at Wolverhampton (AW) on 27 February 2023.
Who is Alnwick Castle's sire?
Alnwick Castle (GB) is by Sir Percy (GB) out of Iron Butterfly (GB), whose sire is Shirocco.
What is Alnwick Castle's official rating?
The most recent official rating on record is 48, from the run on 27 February 2023. The highest on record is 54.
What is Alnwick Castle's sire's record?
Sir Percy (GB)'s progeny in our archive have won 11.2% of 7,153 runs since May 2011 (473 horses), Flat and jumps together.
Who are Alnwick Castle's siblings?
Out of Iron Butterfly (GB), Alnwick Castle (GB) has 1 other produce in our archive, 0 of them winners. As at Nov 2026.

Record shown from May 2021. Our archive holds racing in Great Britain, Ireland and France from January 2005. Any runs before that, or in other countries, are not in it. In-running comments are available from 2024 onward.